mhc-schedule.rb (MhcScheduleDB): Treat a schedule with empty X-SC-Cond: and X-SC-Day: headers as daily one.  Fix the case of X-SC-Cond: indicates month.
Merge pull request #1 from ikazuhiro/work

Treat a schedule with empty X-SC-Cond: and X-SC-Day: headers as daily one.
adjust indent
remove invisible dummy message number at beginning-of-line

Mew 6.x does not need message number at beginning-of-line.
It seems to be even harmful.
Introduce ``X-SC-Recurrence-Tag:''
Convert encoding to UTF-8
Remove trailing whitespaces
Expand tab to 8 spaces
Default coding-system to UTF-8
Add mhc-goto-next/previous-year
Add mhc-import-from-region
Add .gitignore